title: Prevalence of human papillomavirus in anal and oral sites among patients with genital warts.
abstract: Genital warts are caused by human papillomavirus (HPV). HPV is a leading cause of anogenital malignancies and a role of HPV in the aetiology of oro-pharyngeal cancers has been demonstrated. The frequency of oral HPV infection in patients with genital warts and the association between concomitant genital, anal and oral infection is unclear. A total of 201 men and women with genital wart-like lesions were recruited. Swab samples were obtained from the genital warts and the anal canal and an oral rinse was collected. Anal HPV was found in 46.2% and oral HPV in 10.4% of the participants. Concordance between anal and genital wart HPV types was 78.1%, while concordance between oral and genital wart types was 60.9%. A lower concordance of 21.7% was observed between anal and oral HPV types. Significantly more women than men had multiple HPV types and anal HPV. In conclusion, extra genital HPV is common in patients with genital warts. A gender inequality seems to exist.
authors.affiliation: Department of Dermatovenereology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark. kkofoed@hotmail.com.
authors.forename: Kristian
authors.initials: K
authors.lastname: Kofoed
authors.forename: Carsten
authors.initials: C
authors.lastname: Sand
authors.forename: Ola
authors.initials: O
authors.lastname: Forslund
authors.forename: Klaus
authors.initials: K
authors.lastname: Madsen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000821:virology*; D003218:Condylomata Acuminata / Q000453:epidemiology / Q000821:virology*; D004279:DNA, Viral / Q000302:isolation & purification; D003718:Denmark / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009055:Mouth / Q000821:virology*; D027383:Papillomaviridae / Q000235:genetics / Q000302:isolation & purification*; D030361:Papillomavirus Infections / Q000453:epidemiology*; D015995:Prevalence; D060888:Real-Time Polymerase Chain Reaction; D012737:Sex Factors; D012725:Sexual Behavior; D055815:Young Adult
chemical_list: D004279:DNA, Viral